This is not something I really expected to work, with gcc 4.1 being a work in progress. Still, if someone is interested, here is what happened:
In file included from ../../boost/boost/config.hpp:35, from ../../boost/boost/bind.hpp:23, from ../../src/support/translator.h:16, from ../../src/graphics/GraphicsTypes.h:18, from ../../src/graphics/GraphicsLoader.h:27, from render_graphic.h:17, from render_graphic.C:13: ../../boost/boost/config/compiler/gcc.hpp:92:7: warning: #warning "Unknown compiler version - please run the configure tests and report the results" ../../boost/boost/bind.hpp: In function 'void boost::visit_each(V&, const boost::_bi::value<T>&, int) [with V = boost::signals::detail::bound_objects_visitor, T = const InsetBase*]': ../../boost/boost/bind.hpp:296: instantiated from 'void boost::_bi::list2<A1, A2>::accept(V&) const [with V = boost::signals::detail::bound_objects_visitor, A1 = boost::reference_wrapper<const LyX>, A2 = boost::_bi::value<const InsetBase*>]' ../../boost/boost/bind/bind_template.hpp:150: instantiated from 'void boost::_bi::bind_t<R, F, L>::accept(V&) const [with V = boost::signals::detail::bound_objects_visitor, R = const Buffer* const, F = boost::_mfi::cmf1<const Buffer* const, LyX, const InsetBase*>, L = boost::_bi::list2<boost::reference_wrapper<const LyX>, boost::_bi::value<const InsetBase*> >]' ../../boost/boost/bind.hpp:1110: instantiated from 'void boost::visit_each(V&, const boost::_bi::bind_t<R, F, L>&, int) [with V = boost::signals::detail::bound_objects_visitor, R = const Buffer* const, F = boost::_mfi::cmf1<const Buffer* const, LyX, const InsetBase*>, L = boost::_bi::list2<boost::reference_wrapper<const LyX>, boost::_bi::value<const InsetBase*> >]' ../../boost/boost/visit_each.hpp:25: instantiated from 'void boost::visit_each(Visitor&, const T&) [with Visitor = boost::signals::detail::bound_objects_visitor, T = boost::_bi::bind_t<const Buffer* const, boost::_mfi::cmf1<const Buffer* const, LyX, const InsetBase*>, boost::_bi::list2<boost::reference_wrapper<const LyX>, boost::_bi::value<const InsetBase*> > >]' ../../boost/boost/signals/slot.hpp:121: instantiated from 'boost::slot<SlotFunction>::slot(const F&) [with F = boost::_bi::bind_t<const Buffer* const, boost::_mfi::cmf1<const Buffer* const, LyX, const InsetBase*>, boost::_bi::list2<boost::reference_wrapper<const LyX>, boost::_bi::value<const InsetBase*> > >, SlotFunction = boost::function<void ()(), std::allocator<void> >]' render_graphic.C:44: instantiated from here ../../boost/boost/bind.hpp:1105: error: no matching function for call to 'visit_each(boost::signals::detail::bound_objects_visitor&, const InsetBase* const&, int)' make[4]: *** [render_graphic.lo] Error 1 make[4]: Leaving directory `/usr/src/lyx-devel/src/insets' make[3]: *** [all] Error 2 make[3]: Leaving directory `/usr/src/lyx-devel/src/insets' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/usr/src/lyx-devel/src' make[1]: *** [all] Error 2 make[1]: Leaving directory `/usr/src/lyx-devel/src' make: *** [all-recursive] Error 1 Helge Hafting